Ink bottle



FIG. 1 is a top, front and left side perspective view of an ink bottle showing my new design;

FIG. 2 is a front elevational view thereof, the rear elevational view, being a mirror image thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof; and,

FIG. 5 is a top plan view thereof. 

The ornamental design for an ink bottle, as shown and described. 